CONSOLIDATED BALANCE SHEET (Parenthetical) (Unaudited) - USD ($) $ in Thousands	Jan. 01, 2016	Oct. 02, 2015
Statement Of Financial Position [Abstract]
Accounts receivable, allowances	$ 8,375	$ 10,050
Common stock, par value	$ 0.20	$ 0.20
Common stock, shares authorized	60,000,000	60,000,000
Common stock, shares issued	32,450,534	32,378,185
Treasury stock, shares repurchased	2,831,350	2,831,350